Louver-window.



No. 687,705. Patented Nov. 26, Ialll.v

f J. W. WALKER.

LUVER WBNDUW.

(Application filed Dec. 19, 1900.)

(No Model.)

UNITED nrnlr LOUVERWINDOW.

SPECIFICATION forming part of Letters Patent No. 687,705, dated November26, 1901.

Application filed December 19, 1900. Serial No. 40,444. (No model.)

To @ZZ whom t may concern:

Be it known that I, JOSEPH W. WALKER, a subject of the Queen of GreatBritain, residing at Malden, in the county of Middlesex, State ofMassachusetts, have invented a certain new and useful Improvement inLouver- Windows, of which the following is a specification, referencebeing had therein to the accompanying drawings.

In the drawings, Figure 1 shows in front end elevation a louver-windowand supportingframe embodying my invention. Fig. 2 is a side elevationthereof. Fig. 3 is a view in vertical section on the plane indicated bythe dotted line 3 3, Fig. 1, looking in the direction indicated by thearrows at the ends of such line. Fig. 4 shows the slottedholding-bracket, to which reference is made hereinafter. Fig. 5 shows,partially in elevation, a modified embodiment of the invention. Fig. 6is a view in vertical section on the plane indicated by the dotted line6 6, Fig. 5, looking in the direction indicated by the arrows at theends of such line. Fig. 7 is a view, on an enlarged scale, of details ofthe construction shown in Figs. 5 and 6.'

Having reference to the drawings, more especially t0 Figs. l to 4, thesections or louvers of my window are designated l 1 1. The glass of thesaid sections or louvers is held in mountings 2 2 2, which are mountedupon horizontal pivots at 3 3 3 at the opposite ends of the sections orlouvers, so as to enable the said sections or louvers to be swung ortilted to any desired angle about such pivots as may `be required in theuse thereof. Fig. 3 shows the mountings provided, respectively, witharms 2a 2f* 2, which are connected pivotally, by means of screws 2b 2b2* or other suitable means, with the operating-bar 3?, which enables thelouvers to be swung or tilted in unison. For the purpose of operatingthe louvers conveniently a lever 4, mounted upon a suitable fixed pivotat 5, is connected pivotally with bar 3a, as by a pivotal screw 6, thesaid lever having attached thereto the cord 7. By pulling upon this cordthe louvers may be opened more or less, as desired. For the purpose ofholding the louvers at the required angles the cord 7 has appliedthereto a notched or rackshaped handle 8, and a slotted bracket 9 isattached to a convenient fixed support. The notched or racked handie isslipped into the slot of the said bracket, which last by its engagementwith one or another of the shoulders or enlargements of the handle holdsthe louvers in the position which is given to them. The louvers arepivoted above their centers or" gravity, and consequently after beingopened more or less tend to assume their closed position. This tendencyis overcome by the engagement of the handle 8 with the slottedretainingbracket 9. This tendency may be aided, if deemed necessary, bya spring-box 10, mounted on the bar 3L and furnished with a linger 10?',that is arranged to make contact with the pin 11- on a xed support. Thespring contained in the said spring-box acts with a tendency to bear thefinger 10iL downward, the effect of which is to raise bar 3a and closethe louvers, when such spring is permitted to act. The arrangement shownin Figs. 3 and 4 may be duplicated at the opposite side of the window incases where the window is wide and the louvers are heavy.

In Figs. 1, 2, and 3 the monntings 2 2 2 are oblong rectangular frames,preferably of metal, although other material may be employed, receivingthe glass and fitting the four edges of the latter. Figs. 5, 6, and 7show an arrangement in which the mountings comprise simply end supportsor side cheeks 21 21, receiving the opposite ends of the glass sections,the said end supports or side cheeks being pivoted at 22 22 and providedwith arms, which are connected to an operating-bar 33. The attachment ofthe glass to the said mountings or side cheeks 2l` 21 may be effected inany convenient manner, although I prefer to employ springs 23, Fig. 7,applied to the mountings, the said springs being in the form ofslightly-curved strips secured at intermediate points in their length tothe respective mountings and each end of the glass being clamped betweenthe opposite ends of a. spring and a lateral flange 24 onthecorresponding mounting. This means of holding.,r the glass in placeaccommodates glass of any thickness and secures the glass tightly inplace, what ever may be its'thickness.

Preferably the several louvers of a window are mounted, by means of thepivotal screws 3 3 3, within a frame 12, provided with holes IOO 13 1313 for the passage of screws by means of which to fasten the window intoa wooden frame or sash or wherever required to be held, and in such caselever 4t is connected with the said frame by the pivotal screw 5 and pinlla is attached to the frame also.

Louver-windows embodying my invention are capable of being applied toeither new or existing window frames or sashes. They may be applied toboth sashes of an ordinary Window, or to only one thereof, or to anydesired portion of a sash. They may also be applied to doors in whichopenings for light or air are desired. In new work,wherein modificationsof ordinary window design are more readily practicable, the weights,ropes, and cords of ordinary windows and the casings necessary thereformay be dispensed with by using my window in the upper half of thewindow-opening, while the lower half of the latter may be fitted with asash or sashes swung on pivots opening inwardly to facilitate cleaningwithout risk. Y

In the modification shown in Figs. 5, 6, and 7 the mountings of thelouvers consist only of side cheeks, with the necessary clamps to securethe glass thereto, thus dispensing with the top and bottom sides of theframes of Figs. l, 2, and 3. The meeting edges of the glass are in thiscase beveled and finished to form a waterproof closure.

When the louvers are used mainly to secure ventilation, the glass may besemi-opaque or ornamental. The arrangement of the louvers is such thatwhen moderately opened the incomingcurrentof air enters obliquely in anup-v ward direction, thus avoiding draft on the one hand and tending onthe other to diffuse the said incoming air throughout the upper part ofthe room or other space in connection with which my louver-window isapplied. Vhen it is desirable to modify the direction orcharacter of thelight admitted through the window, the louvers may be fitted with plain,corrugated, or other special reflecting or refracting glass or othermedium. The louver-window thus fitted may also be applied tol secure therefracting and reecting action without being used as a ventilator. Itwould in that case be fixed wholly outside and independent of the windowsash through which it is desired to obtain an increased amount ormodified character of light.

I claim as my invention- In combination, the frame l2, the plurality oflouvers consisting of glass sections and mountings for said sections,pivoted in said frame, the bar connecting said louvers in a series, thespring-box mounted on said bar and provided with anger engaging with afixed point on` the frame, the lever for operating said bar, the cordconnected with said lever, and adjustable holding means for said cord,substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

JOSEPH W. WALKER.

Witnesses:

CHAs. F. RANDALL, LEPINE HALL RICE.

